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Task lights for offices and computer workstation luminaires
Workplace lightingMillions of people spend a large part of their lives working in an office or from home. Adequate lighting reduces or even eliminates signs of eye strain: Fatigue, eye discomfort and headaches. They are replaced by efficiency, motivation and a new sense of physical and mental well-being!
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Frequently asked questions about workplace lighting
Legal regulations
Legal regulations govern lighting in the workplace - even in Germany. They are listed under § 6.1, General requirements for VDU workstations, of the Workplace Ordinance (ArbStättV).
- The work tables or work surfaces must have a low-reflection surface and be positioned in such a way that the surfaces are free from disturbing reflections and glare when working. Luminaires with a low glare value, i.e. UGR<19, and indirect light distribution help to meet this requirement.
- In combination with the DIN EN ISO 12464 -1 standard, the lighting must not only correspond to the work task, but must also be adapted to the individual vision of the employee. For example, a higher illuminance of 750 to 1,500 lux is recommended for older employees and visually impaired people, while the same visual task can be performed by a younger employee with 500 lux.
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Technical aspects
Different light sources differ not only in terms of the presence or absence of spectral colors (the result is the color rendering), but also in terms of the intensity of the spectral colors that make up the light (the result is the light color).
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Light color / color temperature
The light color or color temperature is measured in Kelvin (K) and describes the individual inherent color of a white illuminant, generally perceived as "cooler" or "warmer".
The specification of the light color in Kelvin should not be confused with color-changing light technologies (RGB), in which light can shine in red, blue, green or yellow, for example. A rough distinction is made between three light colors:
- Warm white (<3,300 Kelvin) =\ Comfortable light for living spaces
- Universal white (3,300 - 5,300 Kelvin) =\ Functional light for working
- Daylight (> 5,300 Kelvin) =\ bluish light for cellars and utility rooms
Color rendering / CRI
The color rendering index (CRI) indicates how natural the colors of an object appear when illuminated by the corresponding light source.
A CRI of Ra 100 means a reproduction of colors as under daylight. Ra >= 90 indicates very good color rendering, Ra >= 80 good color rendering. Light sources below Ra 80 are not recommended for living spaces, as colors could be distorted or rendered greyish.
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Lighting examples for individual workstations, desk groups and open-plan offices
A good ratio of indirect light and directed light achieves maximum comfortable lighting conditions for the eyes and avoids hard shadows. For this reason, several lights are used for each lighting situation, for example an LED panel for large-area room lighting and a desk lamp for support.\ Some luminaires, such as the ceiling washlight, can also produce both types of light: an indirect light component that shines towards the ceiling and reflects from there, and a direct light component that illuminates the workplace.
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Pendant luminaires can be an alternative to office floor lamps. They are completely glare-free thanks to diffusers or louvres.
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A regularly used home office deserves the same lighting conditions as a single workstation in a company office and can be individually adapted.
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The desk lamp is a space-saving alternative to the floor lamp. The light color and color rendering must also be taken into account.
Further top functions for the task lights in the office
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Increased quality of work and relaxation thanks to automatically adjusted color temperature.
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Felt covering of the screen for sound absorption, for example in open-plan customer service offices.
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Efficient use of light and comfort for employees thanks to precise presence detectors.
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Bluetooth, group/swarm control, sensors for temperature, noise level and air quality.